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There is no precise definition of the term, but lenses marketed as "standard zoom" usually cover a range of at least 30mm to 70mm in terms of 35mm equivalent focal length with an optical zoom ratio of 2.5× (e.g. 28-70mm) to 5× (e.g. 24-120mm) — the most common being 3× (e.g. 24-70mm). [1]
For example, a zoom lens with focal lengths ranging from 100 mm to 400 mm may be described as a 4:1 or "4×" zoom. The term superzoom or hyperzoom is used to describe photographic zoom lenses with very large focal length factors, typically more than 5× and ranging up to 19× in SLR camera lenses and 22× in amateur digital cameras.
This is a list of superzoom compact cameras, also known as travel zoom cameras. [ 1 ] [ 2 ] These are small fixed-lens " point-and-shoot " digital cameras that have a high optical zoom ratio. These cameras all include a power zoom lens that retracts into the body when not in use, along with an automatic lens cover or lens cap.
Diagram illustrating the flange focal length of an SLR–type and a mirrorless–type camera. For an interchangeable lens camera, the flange focal distance (FFD) (also known as the flange-to-film distance, flange focal depth, flange back distance (FBD), flange focal length (FFL), back focus [1] or register, depending on the usage and source) of a lens mount system is the distance from the ...
Zoom ratio, the maximum relative to the minimum magnification factor of an optical system Zoom lens , a lens system with a variable focal length, and hence variable magnification and angle of view Zooming (filmmaking) , a cinematographic effect
Calculator is a basic calculator app introduced with the initial launch of the original iPhone and iPhone OS 1 in 2007. [8] The standard mode includes a number pad, buttons for adding, subtracting, multiplying, and dividing. The app also contains a scientific calculator, with support for exponents and trigonometric functions.
Citigroup, Inc. CEO Jane Fraser has announced "Zoom-Free Fridays" in a new effort to push back against pandemic fatigue for remote workers. See: How to Avoid Work Burnout During a Pandemic Find ...
2014 logo. A beta version of Zoom that could host conferences with only up to 15 video participants was launched on August 21, 2012. [8] On January 25, 2013, version 1.0 of the program was released with an increase in the number of participants per conference to 25. [9]